253155020122244 has 24 divisors (see below), whose sum is σ = 444032857994880. Its totient is φ = 126288492401664.

The previous prime is 253155020122243. The next prime is 253155020122267. The reversal of 253155020122244 is 442221020551352.

It is a junction number, because it is equal to n+sod(n) for n = 253155020122198 and 253155020122207.

It is not an unprimeable number, because it can be changed into a prime (253155020122243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518747177 + ... + 519234959.

It is an arithmetic number, because the mean of its divisors is an integer number (18501369083120).

Almost surely, 2^{253155020122244} is an apocalyptic number.

It is an amenable number.

253155020122244 is a deficient number, since it is larger than the sum of its proper divisors (190877837872636).

253155020122244 is a wasteful number, since it uses less digits than its factorization.

253155020122244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783779 (or 783777 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 253155020122244 its reverse (442221020551352), we get a palindrome (695376040673596).

The spelling of 253155020122244 in words is "two hundred fifty-three trillion, one hundred fifty-five billion, twenty million, one hundred twenty-two thousand, two hundred forty-four".